TRAPEZOID

[trap.e.zoid] n [NL trapezoides, fr. Gk trapezoeides trapezium-shaped, fr. trapeza table] (ca. 1706) 1 a Brit: trapezium 1a b: a quadrilateral having only two sides parallel

2: a bone in the wrist at the base of the forefinger -- trap.e.zoi.dal adj